Type-writing machine.



L. L. PRITZL.

- TYPE WRITING MACHINE.

APPLICATION FILED OCT-4.19M.

1,153,252. Patented Sept. 14,1915

WITNESSES: I

LORENZ I. PRITZL, OF NEW YGRK, N.'Y.,

- a; smarts mm oration- ASSIGNOR TO UNDERWOOID TYPEWRITER COMPANY, OF NEW YORK, N. 51., A CORPORATION OF DELAWARE.

TYPE-WRITING MACHINE.

I Specification of Letters Patent.

Patented Sept. 14,, 1615.

Application filed October 4, 1912. Serial No. 723,836.

T0 aZZ whom it may concern Be it known that I, LORENZ L. PRITZL, a citizen of the United States, residing in New York, in the county of New York and State of New York, have invented certain new and useful Improvements in TypelVriting Machines, of which the following is a specification.

My invention relates to typewriting machines, and particularly to the scales by which the various letter-spaces of said machines may be readily identified, and is preferably used in connection with margin stops by which the travel of the typewriter carriage is limited.

The invention provides a simple and practical means for instantly determining with out any mental calculation, the center of any line of writing for which the margin stops are set, and is thus of special value in placing titles, headings, etc.,in the center of a line, whether the margin stops are adjusted f or a full-length line or a short line.

The invention is herein shown as applied to an Underwood typewriting machine having the usual scale on the frame of the typewriter and a pointer fast on the traveling carriage, which carriage carriesthe worksheet. Associated with said scale fast on the typewriter frame is a second scale shiftable relatively thereto, which is herein shown as attached to the right hand margin stop. This scale may comprise two diiferent scales, one divided into divisions of the same character as those on the main scale, while the other or auxiliary scale may be divided into divisions of twice the size. The number of any division on this second or auxiliary scale may indicate half the number of letter-spaces to the division point on the first scale in line therewith, z. e. in writing a line to that point the number indicates the number of letter-spaces between the beginning and the center of. the line.

The left-hand margin stop of the typewriter may cooperate with this auxiliary scale and with the main scale of the typewriter and carry a pointer so as to indicate at once on the auxiliary scale the number of letterspaces from the right-hand margin-stop; and in so indicating said letter-spaces, it may also indicate the number of lettertrating my invention.

- itself.

spaces from the right-hand margin stop to the middle of the line so written.

Other features and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is a perspective view of so much of a typewriting machine as is necessary for illus- Fig. 2 is a fragmentary perspective view showing the relation of the margin stops to the scales.

In the ordinary Underwood typewriting machine, keys (not shown) cause types (not shown) to strike a work-sheet on a platen 1 mounted in a traveling carriage 2, which carriage is arranged to be drawn along the typewriting machine frame 3, on which it is supported, in a letter-feeding movement by means of a spring (not shown), and is controlled in said movement by the operation of said keys. The types strike a worksheet on the platen at a type-guide 4: at the printing point. Said carriage 2 carries a pointer 5 which is arranged opposite the center of the platen 1 and shows on a scale 6 fast on the front frame 3 of the typewriting machine the number of the letter-space stops arranged to lock with racks 10 and 11 to correspond with the letter-spaces of the scale 6. Said stops 8 and 9 carry pointers l2 and 18 respectively, arranged to read on the main scale 6 and thus indicate the letterspaces at which they are set.

Fast on the right-hand margin stop 8 is a sliding scale 14 divided into letter-spaces like the main scale 6, and extending from said margin stop toward the left-hand end of the machine, the pointer 12 being located at the 0 of this scale 14 and being formed as a projection thereof. Said sliding scale 14 also carries an auxiliary scale 15 having its spaces numbered so that each space on said scale has a number half the value of the corresponding space on the sliding scale The pointer 13 carries a second pointer 16 which is arranged to overlap said sliding scale and show at what point on said said pointer 16 stands, but which extends outwardly so as to allow relative movement of the scale 14 and stop 9. The sliding scale 14 preferably extends to nearly the same length as the main scale 6, and is carried at its left-hand endv as a slide between said pointer 16 and a bracket 17 on the margin stop '9, which bracket is bent up so as to slightly overlie said auxiliary scale and forms a pointer forsaid auxiliary scale.

It will be seen that when the right-hand margin stop is placed in any position such as as ace 12 as seen in Fi .1- the ointer 7 7 16 of the left-hand margin stop willindicate the number'of letter-spaces in the line which can be written between said'stops, and at the samemoment the pointer 17 will indicate on the auxiliary scale 15 the center letter-space on said line. As seen in Fig. 1,

with the left-hand margin stop placed at letter-space 64 the length of the line which can be written is shown pointer 16 to be fifty-two letter-spacesand the center of the line is shown by pointer 17 atletterspace 426. from the right-hand margin stop. 7 j

The alternate graduations on the sliding scale 14 are preferably extended to the auxiliary scale, and in said auxiliary scale every one of said alternate spaces is numbered, thus rendering the mental effort of locating the-center of the line absolutely m'Z. The sliding-scale 14 except for the lengthening of the alternate ggraduations is graduated practically identically with the main scale 6. It will be seen that the mere location of the margin stops at once adjusts all the scales for all purposes, and that the scales themselves do the computing necessary in locating a line.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim. I I

1. In a typewrlting machine, the comb1- nation, with a carriage, and a pointer thereon; of a scale fixed on the machine frame and with which said pointer cooperates to indicate the printing point; a scale parallel withthe fixedscale and shiftable with relation to the same; and a pair of relativelyshiftable margin stops, to one of which the shiftable scale is secured to be shifted there '?by, both stops having pointers cooperative with said fixed scale, and one stop having a 2130i liter-cooperative with saidshiftable scale.

2. Ina typewriting machine, the combinawhich the shiftable scale is secured to be shifted thereby, both stops having pointers cotiperative with said other scale, and one stop having a pointer cooperatix e with said shiftable scale.

3. In a typewriting machine, the combination of a pair of parallel scales mounted adjacent to each other on the machine frame, one scale being shiftable with relation to the other, and both scales having simil.arly-numbered letter-space divisions; a carriage; a pointer on saidrcarriage cooperative with said other scale to indicate the letter-space where the printing point stands; and a pair of relatively-shiftable margin stops, to one of which the shiftable scale is secured to be shifted thereby, said stops having pointers cooperative with said other scale to indicate the initial and terminal letter-spaces of an arbitrary line of writing, and one stop having a pointer cooperative with said shiftable scale to indicate the number of letterspaces comprehended in such line.

4. In a typewriting machine, the combination of a pair of parallel scales mounted adjacent each other on the machine frame and extending in the same direction, one scale being shiftable with relation to the other, and both scales having similarlynumbered letter-space divisions; a carriage; a pointer on said carriage cooperative with said other scale to indicate the letter-space where the printing point stands; an adjustable beginning-of-the-line gage to which the shiftable scale is secured at one end to be shifted thereby, said gage having a pointer located at the 0 of said shiftable scale for cooperation with said other scale to indi cate on the latter the letter-space at the beginning of an arbitrary line of writing; and an end-of-the-line gage adjustable toward and from the first-named gage and having a pointer for cooperation with said other scale to indicate thereon the letter-space at the end of such line, and a second pointer for cooperation with said shiftable scale to indicate thereon the number of lctterspaces comprehended in said line.

a 5. In a typewriting machine, the combination ofa pair of parallel scales mounted adj acent each other on the machine frame and extending in the same direction, one scale being shiftable with relation to the other, and both scales having similar]y-numbered letter-space divisions; a carriage, a pointer on said carriage cooperative with said other scale to indicate the letter-space where the ning of an arbitrary line of writing; and an pointer for cooperation with said shiftable scale to indicate thereon the number of let teiespaces comprehended in such line.

a 6. In a typewriting' machine, the combination of a pair of parallel scales mounted adjacent to each other on the machine frame,

" one of said scales being fixed,*a'nd the other shiftable with relation thereto, 1 and both scales having similarly-numbered "letterspace divisions; a carriage; a pointer on said carriage coe'perati've with the fixed scale to indicate the letter-space where the printing point stands; a shiftable margin stop to which the shiftable scale is securedto be shifted thereby, said stop having a pointer located at the O of said 'shiftable scale for cooperation with said fixedscale'to indicate on thelatter the letter-space at one end of an arbitrary line of writing, andafrnargin i stop shiftable toward and from the=first named stop and having a pointer for cooperation with said shiftable scale to indicate thereon the number of letter-spaces comprehended in such line, said shiftable scale being provided with an auxiliary scale for indicating the letter-space at the center of said line.

7. In a typewriting machine, the combination of a pair of parallel scales mounted adjacent each other on the machine frame, one of said scales being fixed and the other shiftable with relation thereto, and both scales having similarly-numbered letter-space divisions; a carriage; a pointer on said carriage coeperative with. the fixed scale to indicate the letter-space Where the printing point stands; and a pair of relatively-shiftable margin stops, to one of which the shiftable scale is secured to be shifted thereby, said stops having pointers cooperative with said fixed scale to indicate the initial and terminal letter-spaces of an arbitrary line of writing, and one stop having an additional pointer cooperative with said shiftable scale to indicate the number of letterspaces comprehended in such line, said shiftable scale being provided with an auxiliary scale for indicating the letter-space at the center of said line.

8. In a typewriting machine, the combina tion of a pair of parallel scales mounted adj acent to each other on the machine frame, one scale being shiftalole with relation to the other; a carriage having a pointer co'operative with said other scale to indicate the printing point; a shiftable margin stop having a pointer cooperative with said other scale to indicate one end of an arbitrary line of writing; and a margin stop shiftable toward and from the first-named stop and' having a pointer coeperative with said other scale to indicate the other end of such line, said shiftable scale being secured to one stop t o be'fshifted "thereby, and extending to the 1otherrstop tolindicate the'length of such line; and being provided with an auxiliary scalewhich is co-extensive therewith; to in :"dicatethecenter of said line. I T7 '1 3'- 9. In a typewriting machine, the combinat ionwith a traveling carriage, of'a' rod, mar- -"."ginIstopsadjustable along said rod, a, scale ivp'late adjustable with one'mar'ginl stop, and

provided. with two series of indexed scale 7 markings, the indices of one series indicating spaces of double the length oftho se indicated. by the other'series, a pointeradj'ustfable with; the scale plate, and pointers adwj'ustable with the other stop. i 10, In typewriting machine, the combination with a traveling-carriage; of an ind-icatorpn said carriage, a scale on the frame of-the machine, a second scale adjacent to said first scale and shiftalole relatively there- 5 to, both scales beiagpermanaa "exposed to --vie'w, a margin stop carrying said second 7 scale, a second margin stop adjustable relatively thereto, and separate pointers for said scales carried by one of said margin stops.

11. In a typewriting machine, the combination with a traveling carriage, of an in dicator on said carriage, a scale on the frame of the machine, margin stops adjacent to said scale and carrying indicators therefor, and a second scale fast on one of said margin stops arranged to be read by an indicator on the other, both said scales being permanently exposed to view, and one of said margin stops carrying separate pointers for said scales.

12. In a typewriting machine, the combination with a traveling carriage, of an indicator on said carriage, a scale on the frame of the machine, margin stops adjacent to said scale and carrying indicators therefor, a second scale fast on one of said margin stops, arranged to be read by an indicator on the other, and an auxiliary scale fast on said second scale for determining the arrangement of spaces on the work-sheet, all of said scales being permanently exposed to view, and one of said margin stops carrying separate pointers for all of said scales.

18. In a typewriting machine, the combination with a traveling carriage, of an indicator on said carriage, a scale on the frame of the machine, an indicator to show where a line may be begun, an indicator to show Where a line will end, a scale fast on one of said indicators showing the letterspacing to the next indicator, and an auxiliary scale showing the relation of said spacing to the printing point, all of said scales being permanently exposed to view, and one of said margin stops carrying separate pointers for all of said scales.

14c. In a typewriting machine, the combination with a traveling carriage, of an indicator on said carriage, a scale on the frame .-of the machine, .a :stop set- .tahle along said scale :zlior determining the beginning of a iine, a margin etap vsettah le along rsaidesea'fle for deter-mining :the end iof a line, a scale carried on one 7405f eaid .stops and'extendin'g to zbhe other to indicate the length of the line betw een :them, and an anxi-liary scale the letter-regiment the center of said line, all :of senile/s fleeing permanently exposed to wiew, Land zonerof said 'nlangin stops sepanate gnoinizers for all of said eea'les.

15,111 a qtypewriting-mnchine, dz-he nemhination with traveling carriage, of anargin stops for said :eanniage, fa seals ifierind ieating the lettenspnce at which the printing point of,eaideanriegegstande, and :a ;:scaie 101140116 of said vmargin steps extending :to-

ward the other vstop, both :seales .leeing f permanently exposed to view, and one of .F. ALEXANDER, Trans lnons.

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